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Press Release 027/2014

Optimized Ski Sled for Paralympics Athlete

KIT Friction Researcher Coordinates Development of High-performance Sled for Athlete with Walking Disability – Recreational Sports Might Profit
2014_027_Optimierter_Skischlitten_fuer_Paralympic-Sportler_72dpi
At the 2014 Paralympics in Sochi, athlete Martin Fleig will compete with a precisely adapted ski sled. (Photo: M. Scherge/KIT)

At the Paralympics in Sochi next week, a novel ski sled that has been optimized with respect to biomechanics and friction tech-nology will be used. The high-performance sled was developed by the MicroTribology Center, an institution of Karlsruhe Institute of Technology and the Fraunhofer Institute for Mechanics of Materials. The findings obtained under this “Snowstorm” research project might also be of benefit for recreational sports of persons with walking disabilities.

 

At the Paralympics in Sochi, ski athlete Martin Fleig will use a newly developed ski sled that is precisely fit to the individual needs of the multiple German champion in biathlon and cross-country skiing. With the help of biomechanical movement analyses, the seating position was determined, in which the athlete can optimally use his power. The 24-year-old competitive athlete, who has been suffering from walking disability since his birth, kneels on the metal sled and pushes it forwards with the help of ski poles. The sled was designed using 3D scanners and computers. “Adaptation of the seat to the body is very important to success. If the sled is part of the body, a maximum force flow and driving comfort result,” says Professor Matthias Scherge, Head of the MicroTribology Center at Pfinztal near Karlsruhe. Scherge is a tribology expert and studies friction, wear, and lubrication. He teaches at the Reliability of Components and Systems Division of the Institute for Applied Materials (IAM-ZBS) of Karlsruhe Institute of Technology (KIT) and coordinates the “Snowstrom” research project.

 

“For biathlon in particular, where the athlete lies down for shooting with a complex rotation movement and powerfully rises up to the seating position again, the sled has to be light and stable at the same time,” Scherge says.

 

As the skis mounted to the sled do not allow for any skating move-ments, polishing has to meet particular requirements. Scherge points out that apart from the high performance of the athlete and his sled, the interaction of snow and ski is important for the sliding speed on the track. Temperature, humidity, and the shape of the snow grains influence the sliding of the skis on the very thin water film. Prior to the competitions, the “Snowstorm” researchers collected numerous data relating to the snow, track, and weather at Sochi. The models based on these evaluated data are used to support the Nordic Skiing paralympics team in wax selection, ski polishing, and ski preparation for the competition.

 

A consortium of partners from science and industry is involved in the “Snowstorm” project. Apart from the KIT and the Fraunhofer Society, the Institute of Sport of Freiburg University, manufacturers of measurement instruments, precision mechanics companies, and ski wax specialists located in Baden-Württemberg are among the project partners. KIT’s Institute of Meteorology and Climate Research supplies the athletes with weather forecasts for Sochi up to 72 hours in advance. These forecasts are important for ski preparation and will be updated daily. “We want to demonstrate that handicapped people can also do snow sports,” Scherge says. He thinks that future construction of a simple version of the ski sled for recreational sports of people with a walking disability is feasible. “My vision is barrier-free skiing in the Black Forest for instance,” the scientist says.

 

Blog of the Snowstorm project: http://tcms-karlsruhe.de/

 

Projekt-Homepage: http://www.mikrotribologiecentrum.de/leistungen-forschungsbeispiele/forschungsbeispiele/snowstorm/#c6989

 

Karlsruhe Institute of Technology (KIT) is a public corporation according to the legislation of the state of Baden-Württemberg. It fulfills the mission of a university and the mission of a national research center of the Helmholtz Association. Research activities focus on energy, the natural and built environment as well as on society and technology and cover the whole range extending from fundamental aspects to application. With about 9400 employees, including more than 6000 staff members in the science and education sector, and 24500 students, KIT is one of the biggest research and education institutions in Europe. Work of KIT is based on the knowledge triangle of research, teaching, and innovation.

kes, 27.02.2014

For further information, please contact:

Kosta Schinarakis
PKM, Themenscout
Tel.: +49 721 608-41956
Fax: +49 721 608-43568
E-Mail:schinarakis@kit.edu
The photo of printing quality may be requested by presseSpi0∂kit edu or phone: +49 721 608-47414. The press release is available as a PDF file.